Razor blade holder



.Sept 5, 1944. E.; M. PERKINS 2,357,601

' RAZOR BLADE HOLDER Filed oct. 14, 1945 7 [2v/venan' EzggeMPez'ruza 35,5240?, 1M] M, Pm

Patented Sept. 5, 1944 iJNlTED' STAT-Es PATENT .oFFlcE RAZOR BLADE HOLDER Eugene M. Perkins, Boston, Mass.

Application October 14, 1943, 'Serial No. 506,194

(C'l. Z50-53) 11 Claims.

`This invention relates to safety razor blade honing and s'tropping and is concerned with a novel combination of honing and stropping blade holder and blade, the latter being of the type provided at its back or thickened 'rear portion With a socket to receive a stud on a blade carner. The invention a'nis to 'provide a novel and substitute for theusual and wellknown 'Rolls fhon'fg 'and strpping mechanism, and 'whose Tcharac'teristics shall be. such that honing 'fandstrbppingfcan be pcarried out Withstandard Alio'fne'sandstrops of the-character usuallyem- .plofye'd for Ythe old-fashioned, or straight razor, iso-called,Jwitl'i all the advantages owing from 'the use loi ordinary hones and. strops,thereby obviating certain disadvantages inherent in the nechanism. Y Y The invention .will best be understood by ref- 'erence to theY following description when taken in connection-with the accompanying. drawingof severalembodirnents thereof, while its scope will be pointed out more particularly in the appended olaims.

In the drawing:` Fig. 1 is a plan of a razor blade and a honing and stropping Aholderembodying the invention; Fig, 2 isa side elevation of the same; l

`Fig.,3A isa Vplan .cfa portion of the holder by itself; Y Y

Fig. 4 isa cross-sectional Aview on line 4.-4 of Figfl; N Fig. `5Y is ,a sectional viewon line 5-5 of Fig. 2, showing the holder. and the blade locked together; Fig. 6,.is,a sectional View similar to Fig. 5, but showingthe holder unlocked fromthe blade in readiness fordetach-ment therefrom; Fig. 7 .is a sectional View on line 'l-l of Fig. 2; Fig. 8 is a sectional-viewon line 8-8 of Fig. 2, showing the holder and bladelockedtogether; ..'Fig.,9 is asectionalview similar to-Fig. 8, showing theV holderunlocked from a 4blade in readiness for. detachment therefrom; and Figs.. 1.0 to 18, inclusive, are views illustrating several modications `orvariations yofthe invention. Y

, Referring to the drawing and hav-ing reference at rst more-particularly to Figs. 1 and 2, there is shown a Rolls type blade 23 equipped with a usual, guard 25. The blade has the usual concave lsurfaces 21 meeting in.l a cutting edge 29 and diverging rearwardlyvto form a. thickened back 3,| .having are'ar surface 33. The yblade is provided with the usual Socket 35lcharacteristic of the Rolls type blade'an'd V(":oinp'ri'sing two conical portions 31 and 39, one l(a truncated cone) larger than the other, with a shoulder 4l between them. Leading into the larger, truncated conical portion 39 is an entrance opening or aperture 43 ,which (see Fig. 1) is elongated lengthwise of the blade, and (see Figs. 5 and 6) is separated from the conical portion 39 by shoulders 45 which overhang the latter.

The described socket receives a stud 41 having conical portions 49 and 5| corresponding Vto the conical portions -of the socket except that the larger,Y truncated conical portion 5l (see Figs. 8 and 9) is slabbed to form at faces 52 and thus is elongated to coincide .with and to enter of the blade 23. To retain the handle in this position, the handle and the blade, in accordance with my invention, may be constructed in various ways to -interengage with each other, thereby to accomplish the normal retention of the handle in the position in which the stud 41 interlocks with the blade V23. One example is illustrated in Figs. 1, 2, 3 and 7, while others are illustrated in Figs. l0 to 18, inclusive.

The example illustrated in Figs. 1, 2, 3, and 7 will now be described, vreference being had at rst to Fig. 7. In this example, the back 3l of the blade is VYprovided with a depression or depressions 6I, either short depressions as shown in Fig. 1, or long depressions 6|A, separated only by the aperture 43, as in Fig.y 10, and cylindric as in Fig.- 7, or V-shaped as at 6|B in Fig. 11, or there may be hemispheric depressions as at 6l C in Fig. 12. Alternatively, the blade may be provided with projections such as ribs 63, cylin'- dric,` as in Fig. 1I?, or vfshaped, or hemispheric as at 63A in Fig, 14. In the latter case, the heiispheres may be formed as integral parts of the blade or as steel balls inserted into the blade.

In any case, the shank 51 of the handle iis appropriately constructed for cooperation with these depressions or projections,` though in each case the shank preferably has the characteristic Y of being elastic and thereby constituting a spring detent interengageable with the indentations or projections on the blade. One way of making the shank sufliciently elastic for the purpose is to weaken the same as by a depression 65 at the top, and also, if desired a second depression B1 at the bottom, so that the shank will be locally elastic, though possibly these might be dispensed with if the shank is sufficiently slim to be adequately elastic. In the example shown in Figs. l, 2, 3 and '7, the shank otherwise is cylindric to correspond with the cylindric depression or depressions BI, or 61A, or to enter the V-shaped depressions SIB, or in the case of the latter, the shank may be correspondingly V-shaped in crosssection. If, however, hemispheric depressions GIC are employed, the shank will have a projection 69 (see Fig. l5) either hemispheric or conical.

On the other hand, if the blade is provided with projections such as 63 or 63A, the shank will be provided with a cylindric or a V-shaped groove 1| (see Fig. 16) or a hemispheric depression 13 or a conical depression 15 (see Figs. 1'1 and 18) to receive the projections 63A.

In any case, the interengaging depressions and projections may be at only one end of the blade, K i

The advantage of having them of its resiliency. When in place, the handle is" securelyV interlocked with the' blade because in this position of the handle the lips 53 ofthe stud 41 are engaged with the shoulders 45 and because the handle remains in position lengthwise of the. To remove the handle from the blade,

blade. the handle is swung through an angle of 90 (compare Figs. 8 andV 9) and the lips 53 of the stud 41 now register with the elongated slot-43 and can pais through the latter to permit the stud to be wihdrawn lengthwise of its axis of rotation. A blade holder for shaving purposes can then be substituted for the described honing and stropping holder.

To facilitate the turning .of the blade holder about the longitudinal axis of the handle in honing or stropping, the handle is provided with a knurled portion 19 to be grasped between the thumb and the index finger, while the remaining portion 8| preferably is smooth to turn readily in the remaining fingers. In the present example, this turning action is further facilitated by making the portion 8l as a sleeve turning about a shaft 83. The portion 19 to be grasped between the thumb and forefinger may be provided with two or more at faces 85 as an aid in controlling the turning of the blade holder in honing or stropping. To prevent the thumb and forenger from slipping toward the blade, the handle may be provided with a flange 81 between the grasping portion and the shank 31.

Having thus described these several embodiments or variations of the invention, what I claim and desire by Letters Patent to secure is:

1. The combination of a razor blade having a thickened back provided with a socket, and a honing and stropping holder having a handle extending lengthwise of and beyond one end of said blade, said holder having a stud transverse to said handle, rotatable within said socket and having laterally projecting means normally intervcooperative means normally to resist turning of said stud and said handle about the axis of said stud.

3. The combination of a razor blade having a thickened back provided with a socket, and a honing and stropping holder having a handle extending lengthwise of and beyond one end of said blade, said holder having a stud transverse to said handle and having laterally projecting means normally interlocked laterally with said socket, Vsaid bladeV and said holder being provided, one with a depression and the other with a projection which normally is received in said depression and means which causes said projection to leave said depression when said handle and said stud are turned about the axis of rotation of said stud.

4. The combination of a razor blade and a holder therefor, said blade being provided with a socket transverse to its cutting edge and provided with a lateral recess, and said holder being generally L-shaped and comprising an attaching portion rotatably received in said socket, and provided with ya lateral projection received in said recess, and a handle extending from said socket along the back of said blade and beyond one end thereof.

5. The combination of a razor blade and a holder therefor, said blade being provided with a socket transverse to its cutting edge and provided withla lateral recess, and said holder being generally L-shaped and comprising an attaching portion rotatably received in said socket, and -provided with a lateral projection received in said recess, and a handle extending from said socket along the back of said blade and beyond one end thereof, said handle and said blade being normally interlocked with each other between said socket and one end of said blade to resist turning of said attaching portion in said socket.

6. The combination of a razor blade and a holder therefor, said blade being provided with a rsocket transverse to its cutting edge and provided with a lateral recess, and said holder being generally L-shaped and comprising an attaching portion rotatably received inV said socket, and provided with a lateral projection received in said recess, and a handle extending from said socket along the back of said blade and beyond one end thereof, said handle and said blade being normally interlocked with each other between said socket and one end of' said blade to resist turning of said attaching portion in said socket, said handle having resilient means arranged to yield and to permit such turning.

. '1. The combination of a razor blade and a holder therefor, said blade being provided with a socket transverse to its cutting edge, and said holder being generally L-shaped and comprising an attaching portion received in said socket, said socket and said attaching portion having laterally interengaging means, and a handle extending from said socket along the back of said blade and beyond one end thereof, said handle and said blade being normally interlocked with each other between said socket and one end of said blade to resist turning of said attaching portion in said socket, said handle having resilient means arranged to yield and to permit such turning, and said blade being provided with a bevelled surface to facilitate restoration of said handle to its normal position.

8. The combination of a razor blade and a holder therefor, said blade being provided with a socket transverse to its cutting edge, and said holder being generally L-shaped and comprising an attaching portion received in said socket, said socket and said attaching portion having` laterally interengaging means, and a handle extending from said socket along the back of said blade and beyond one end thereof, said handle and said blade being normally interlocked with each other between said socket and one end of said blade to resist turning of said attaching portion in said socket, said handle having resilient means arranged to yield and to permit such turning, and said blade being provided with a bevelled surface to facilitate restoration of said handle to its normal position, and said blade being provided with a bevelled surface to cause said resilient means to yield while said handle is being restored to its normal position.

9. The combination of a razor blade and a holder therefor, said blade being provided with a socket transverse to its cutting edge, and said holder being generally L-shaped and comprising yan attaching portion rotatable in said socket, said socket and said attaching portion having laterally interengaging means, about an aXis transverse to the cutting edge of said blade, and a handle having a shank leading from said attaching portion lengthwise of and along the back of said blade, and a grasping portion beyond said shank, said shank being elastic, and said blade and said shank being cooperatively arranged to utilize the elasticity of said shank normally to resist turning of said holder about said axis.

10. A razor blade holder comprising a blade attaching stud having laterally projecting means for interlocking laterally with a blade, and a handle transverse to said stud and having a grasping portion and an elastic blade-engaging portion between said grasping .portion and said stud.

11. A razor blade holder comprising a blade- 

